1) If a VET institution suffers from low attendance rates, then the indicator should be calculated based on the number of attending trainees (instead of enrolled ones).
2) The results can be compared with established national norms on the number of students/ trainees per teacher/ trainer for each level or type of education.
3) This indicator does not take into account factors which could affect the quality of teaching/ learning, such as differences in trainers’ qualifications, pedagogical training, experiences and status, teaching methods, teaching materials and variations in classroom conditions.